DataStax Astra DB pricing
Apache Cassandra · DataStax (IBM) · snapshot captured June 2026
DataStax Astra DB is a managed Apache Cassandra offering from DataStax (IBM). It uses serverless per-request (rru/wru) + storage + transfer. Its representative entry tier is Free allowance / pay-as-you-go at Free / usage. Pay per read request unit (RRU), per write request unit (WRU), plus storage per GB-month and data transfer. Free tier: Free monthly allowance: about 30M reads, 4.5M writes, 40 GB storage (no card). Prices are a June-2026 snapshot; verify on the linked vendor pricing page before relying on them.
Source: DataStax (IBM) pricing. Data as of June 2026.
DataStax Astra DB pricing tiers
| Tier | Specs | Hourly | Monthly | Notes |
|---|---|---|---|---|
| Free allowance | ~30M reads, 4.5M writes, 40 GB/mo | — | Free | Generous free monthly allowance. |
| Pay As You Go | Per RRU/WRU + storage | — | — | Write units ~$0.64-0.69/million (varies by cloud/region). |
| Enterprise (PCU) | Provisioned Capacity Units | — | — | Annual commitment; reads/writes not separately metered. |
Source: DataStax (IBM) pricing. Prices are a June-2026 snapshot; verify on the linked vendor pricing page before relying on them.
At a glance
| Cost factor | DataStax Astra DB |
|---|---|
| Engine | Apache Cassandra |
| Vendor | DataStax (IBM) |
| Pricing model | Serverless per-request (RRU/WRU) + storage + transfer |
| Representative tier | Free allowance / pay-as-you-go (Free / usage) |
| Storage / extras | Pay per read request unit (RRU), per write request unit (WRU), plus storage per GB-month and data transfer. |
| Free tier | Free monthly allowance: about 30M reads, 4.5M writes, 40 GB storage (no card). |
| Region note | Multi-cloud; rates vary by cloud/region. Now part of IBM watsonx.data. |
Source: DataStax (IBM) pricing page. Data as of June 2026.
Cost pros & cons
Where Astra DB saves money
- Serverless: pay per request, generous free monthly allowance
- Cassandra/CQL compatible with autoscaling and multi-region
- No node sizing or capacity planning for variable workloads
Watch-outs
- Per-RRU/WRU cost is hard to estimate for steady high throughput
- Exact AWS-Americas RRU/WRU rates moved to IBM Cloud docs
- Enterprise PCU model requires an annual commitment
Accuracy note: DataStax was acquired by IBM; the Astra pricing URL redirects to IBM watsonx.data. Free allowance and sample WRU rates are corroborated; exact AWS-Americas RRU/WRU/storage rates are 'see vendor'.
DataStax Astra DB vs similar offerings
How DataStax Astra DB compares with other managed Apache Cassandra and adjacent offerings:
| Offering | Engine | Representative tier | Est. monthly |
|---|---|---|---|
| DataStax Astra DB (this offering) | Apache Cassandra | Free allowance / pay-as-you-go | Free / usage |
| NetApp Instaclustr for Cassandra | Apache Cassandra | production-tiny (m4.large) per node | ~$250/mo |
| Amazon RDS for MySQL | MySQL | db.t3.medium (2 vCPU / 4 GiB) | ~$52/mo |
| Google Cloud SQL for MySQL | MySQL | 2 vCPU / 8 GB (Enterprise edition, compute only) | ~$101/mo |
| Azure Database for MySQL | MySQL | D2ds_v5 (2 vCore / 8 GiB, compute only) | ~$125/mo |
| PlanetScale | MySQL | PS-10 (smallest realistic production cluster) | ~$39/mo |
Frequently asked questions
How much does DataStax Astra DB cost?
DataStax Astra DB uses serverless per-request (rru/wru) + storage + transfer. Its representative entry is Free allowance / pay-as-you-go at Free / usage. Pay per read request unit (RRU), per write request unit (WRU), plus storage per GB-month and data transfer. snapshot captured June 2026 — verify on the vendor's pricing page.
Does DataStax Astra DB have a free tier?
Yes. Free monthly allowance: about 30M reads, 4.5M writes, 40 GB storage (no card).
What is the cheapest DataStax Astra DB tier?
The smallest tier is Free allowance (~30M reads, 4.5M writes, 40 GB/mo): Free. Generous free monthly allowance. Prices are a June-2026 snapshot; verify on the linked vendor pricing page before relying on them.
What should I watch for in DataStax Astra DB pricing?
Watch-outs: Per-RRU/WRU cost is hard to estimate for steady high throughput; Exact AWS-Americas RRU/WRU rates moved to IBM Cloud docs; Enterprise PCU model requires an annual commitment. DataStax was acquired by IBM; the Astra pricing URL redirects to IBM watsonx.data. Free allowance and sample WRU rates are corroborated; exact AWS-Americas RRU/WRU/storage rates are 'see vendor'.
Keep exploring
Source & accuracy
Figures are a dated snapshot from DataStax (IBM)'s pricing page (snapshot captured June 2026). Managed-database pricing is volatile and varies by region, tier, storage and discounts — verify current prices on the vendor's page before purchasing. This is an informational comparison, not a quote. See our methodology and disclaimer.
Last updated: 2026-06-20